[Micleg]

Originally Posted by David325Australia

...

I am looking forward to the next step (or 2) up with the F30 hk system.

In the meantime, take a look at this.

http://www.bmw.harmankardon.com/en/v.../BMW-3-Series/

Wow! If that is correct the HK system is getting substantially upgraded! The information for the models not replaced yet, like E91, has the old configuration so this probably means this page will be updated with F31 and a buck load of power later on.